144
Setting the speed log switches
1. This radar uses the six types of standard speed log signals listed bellow.
Pulse type : 800 pulses/NM, 400 pulses/NM, 200 pulses/NM,
100 pulses/NM
Synchro type : 360X/NM, 180X/NM, 90X/NM, 30X/NM
Set gyro select switch assembly S5(⑪) using the S5 setting table.
2. Connect the speed log signal line to, for the pulse type, the [PULSE] side, or for
the synchro type, the [SYNCRO] side, of terminal block TB20 (⑦).
1 2 3 4 5 6 7 8
SYNC 0
STEP 1
360X 0 0
180X 0 1
90X 1 0
36X 1 1
Normal (NORM)
0
Gyro signal (GYRO SIG.)
Rotational
direction
Reverse (REV)
1
PULSE 0
Type
SYNCRO 1
0
800P/360X 0 0
400P/180X 0 1
200P/90X 1 0
Log signal (LOG SIG.)
PULSES/NM
100P/30X 1 1
3. S5 (⑪): Gyro log select switch assembly
Set the switch assembly in accordance
with the S5 setting table.
4. S6 (⑧): Log test switch
Setting this switch to the [TEST] position
displays 18KT.
Usually, set the switch to [NORML].
5. Light-emitting diode CD22 is provided to
check pulse-type log input signals. This
LED lights if the log signal level is +2V o
more (or under a non-connected status o
the log signal line), or it does not light if the
log signal level is +2V or less.
1
2
3
4
5
6
7
8
ON OFF
S5
ON : 1
OFF : 0
It is described as
S5 setting table
[Setting Table of the Speed Log Select Switches of NCT-4106]
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